New York attorney record · Judicial Dept 3
Jeffrey Jay Greenbaum
University Of Michigan alumna, admitted to the New York bar in 1980, registered office in Newark, NJ. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1980
- Admitted
- 46
- Years in bar
- 1933902
- NY reg #
The record in one line
Jeffrey Jay Greenbaum has spent 46 years on the register since admission in 1980, one of the longest-standing active practitioners the state bar carries at 92% tenure percentile.
- 46 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #32 of 1,838
- by tenure in Newark office peers
- Law school
- University Of Michigan
Data updated September 2026
What this profile tells you
Bar status & tenure
Jeffrey Jay Greenbaum has carried New York bar registration 1933902 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Sills Cummis & Gross P.C., located in Newark, NJ, ZIP 07102. 5 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY OF MICHIGAN (2,044 registered alumni).
State context & due diligence
Across a career spanning 46 years, Jeffrey Jay Greenbaum has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Jeffrey Jay Greenbaum's 46 years since a 1980 admission places this record near the far edge of the statewide tenure curve below.
46 years on the New York bar
Years since admission, all currently-active NY attorneys
46 Top 8% higher than 92% of 290,787 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · September 2026
Tenure among Newark, NJ office peers
Jeffrey Jay Greenbaum is earlier in the Newark, NJ office cohort than most peers: local tenure rank #32 of 1,838 (2nd percentile). See the Newark attorney directory .
- Local rank
- #32
- City cohort
- 1,838
- Local percentile
- 2nd
- Admitted
- 1980
Nearest tenure peers in Newark
- Margaret Mary Foran admitted 1980 · 46 yr
- Gerald Tierney Ford admitted 1980 · 46 yr
- Lawrence Stephen Horn admitted 1980 · 46 yr
- Bruce Philip Keller admitted 1980 · 46 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
How Jeffrey compares to fellow University Of Michigan alumni
Among the 1,196 University Of Michigan graduates in the New York register, Jeffrey Jay Greenbaum is longer-tenured than 99%.
46 years vs. University Of Michigan alumni
Years since admission - 1,196 NY-registered alumni of this school
46 Top 1% higher than 99% of 1,196 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · September 2026
University Of Michigan's active-bar rate
Of University Of Michigan's 2,044 alumni in the New York register, 62.6% currently hold "Currently registered" status, below the statewide average.
The 1980 admission class today
Of the 4,659 attorneys admitted to the New York bar in 1980, 52% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1933902
- Year Admitted
- 1980 (46 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Feb 2028
Location & Contact
- Company
- Sills Cummis & Gross P.C.
- City
- Newark, NJ
- ZIP Code
- 07102
- Phone
- (973) 643-7000
Education
Status Distribution Across the New York Bar
Jeffrey Jay Greenbaum's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Same firm affiliation: Sills Cummis & Gross P.C.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure University Of Michigan alumni
Fellow alumni on the NY register whose admission year is closest to 1980 (excluding same-firm colleagues above).
Same admission year (1980), other cities
NY-registered attorneys admitted in 1980 whose listed office city differs from Newark, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Jeffrey Jay Greenbaum: closest NY bar admission year outside NJ, and closest out-of-state office cities by how many NY-registered attorneys they list (~1,839 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1980)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
Jeffrey Jay Greenbaum's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Jeffrey Greenbaum licensed?
Jeffrey Greenbaum is licensed to practice law in New York.
When was Jeffrey Jay Greenbaum admitted to the bar?
Jeffrey Jay Greenbaum's admission to the New York bar dates back to 1980.
Where did Jeffrey Jay Greenbaum go to law school?
Jeffrey Jay Greenbaum attended UNIVERSITY OF MICHIGAN.
What company does Jeffrey Jay Greenbaum work for?
Jeffrey Jay Greenbaum is associated with Sills Cummis & Gross P.C. in Newark, NJ.
Is Jeffrey Jay Greenbaum in good standing?
Yes, Jeffrey Jay Greenbaum holds active bar status ("Currently registered").
Cite this page & disclosure
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.